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2018 5th International Conference on Signal Processing and Integrated Networks (SPIN)最新文献

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A Design for Two-Dimensional Non-Causal Deslauriers-Dubuc Discrete Wavelet Transformation for Real-Time Video Processing on FPGA 基于FPGA的二维非因果Deslauriers-Dubuc离散小波变换的实时视频处理设计
M. Hussain, Thi Phuong Loan Hoang, Christian Langen
In this paper, an efficient implementation for two-dimensional non-causal Deslauriers-Dubuc discrete wavelet transformation using the lifting scheme for real-time video processing is proposed. Firstly, a two-dimensional discrete Deslauriers-Dubuc wavelet transformation for decomposition with outputs as the approximation, horizontal details, vertical details and diagonal details of the input frames and inverse discrete wavelet transformation for reconstruction of the decomposed video stream is implemented on the Simulink HDL coder platform. The method with FIFO and counter logic provides serial data to the wavelet transform module, which reduces the delay time as compared to the prior approach of the delay line [1]. The implementation addresses the solution for problems related to serial processing by non-causal wavelet filters and delay in the output frame display. Later, the Simulink model is tested on the Terasic Intel/Altera DE2i-150 board and applied to processing of real-time video supplied by a Terasic 5 MPixel digital camera at the rate of 15 frames per second.
本文提出了一种基于提升算法的二维非因果deslaurier - dubuc离散小波变换的实时视频处理方法。首先,在Simulink HDL编码器平台上实现了以输出为近似的二维离散Deslauriers-Dubuc小波变换分解输入帧的水平、垂直和对角细节,并对分解后的视频流进行逆离散小波变换重构。FIFO和计数器逻辑的方法为小波变换模块提供串行数据,与延迟线[1]的先前方法相比,减少了延迟时间。该实现解决了非因果小波滤波器串行处理和输出帧显示延迟相关的问题。随后,Simulink模型在Terasic Intel/Altera DE2i-150板上进行了测试,并应用于Terasic 5百万像素数码相机以每秒15帧的速率提供的实时视频处理。
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引用次数: 4
Tunable Q - wavelet transform based features for automated screening of knee-joint vibroarthrographic signals 基于可调Q -小波变换的特征自动筛选膝关节关节振动信号
Jayrajsinh Zala, M. Sharma, R. Bhalerao
Pathological conditions in the knee joint can be caused by vibrations emitted in knee joint while bending or extending the leg. To detect this vibrations or to know the inner condition of the joint like softening, coarseness, breakage or it’s state of lubrication of articular cartilage surface, vibroarthrographic (VAG) signal is useful. The VAG signal is used because of fluctuating and nonlinear property which is helpful to extract the condition of knee joint. In present work on VAG signals by using the TQWT decomposition. VAG signals are partitioned into sub-band signals of distinct frequencies. There are different features of VAG Signals, fluctuating in nature like Kraskov Entropy (KE) and Signal Fractal Dimension (SFD). The performance of feature selection (FS) techniques can be validated through using the Least square support Vector machine (LS-SVM). By using LS-SVM classifier we have achieved an accuracy of 86.91%, sensitivity of 88.33%, specificity of 86.66% based on the input of 89 VAG signals.
膝关节的病理状况可由弯曲或伸展腿部时膝关节发出的振动引起。为了检测这种振动或了解关节内部情况,如关节软骨表面的软化、粗糙、断裂或润滑状态,关节振动图(VAG)信号是有用的。利用VAG信号的波动和非线性特性,有助于提取膝关节的状态。目前对VAG信号进行了TQWT分解。VAG信号被划分为不同频率的子带信号。VAG信号具有不同的特征,像克拉斯科夫熵(klaskov Entropy, KE)和信号分形维数(Signal Fractal Dimension, SFD)一样具有波动性。使用最小二乘支持向量机(LS-SVM)可以验证特征选择(FS)技术的性能。使用LS-SVM分类器对输入的89个VAG信号进行分类,准确率为86.91%,灵敏度为88.33%,特异性为86.66%。
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引用次数: 10
A Framework for Codon Based Analysis to detect abnormalities responsible for Esophagus Cancer using Soft Computing Tool 基于密码子的食管癌异常分析框架
Hemashree Bordoloi, Daisy Roy, S. Nirmala
Deoxyribo Nucleic Acid (DNA) sequencing is a rapidly expanding biomedical research technology used for molecular diagnostics. It is basically a process of determining the precise order of nucleotide bases. The three unit nucleotide combinations within a DNA form codons which are related to amino acids and subsequently to proteins. One of the primary principles of disease detection is based on irregularities in the codon grouping. The focus of this work is to determine abnormalities in the codon sequence using soft computing tools and thereby provide a reliable computational mechanism for disease detection which have distinct genetic linkage.
脱氧核糖核酸(DNA)测序是一种快速发展的生物医学研究技术,用于分子诊断。它基本上是一个确定核苷酸碱基精确顺序的过程。DNA内的三个单位核苷酸组合形成密码子,这些密码子与氨基酸相关,随后与蛋白质相关。疾病检测的主要原则之一是基于密码子分组的不规则性。本工作的重点是利用软计算工具确定密码子序列的异常,从而为具有独特遗传联系的疾病检测提供可靠的计算机制。
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引用次数: 0
Analysis of Different Converters for Reduced Total Harmonic Distortion and Improved Power Factor 不同变换器对降低总谐波失真和提高功率因数的分析
Piyush Sharma, DHEERAJ KUMAR DHAKED, Sachin Saini, L. K. Tripathi, Ashish Shrivastva
Power electronics is a vast area in electrical engineering for research which includes different switching devices to control and switching of electrical machines and drives for their output, speed and torques etc. It has many applications in our everyday life such as motor drives, and power supplies for computer. The ‘current’ drawn by these devices is distorted so there is a necessity to use power factor correction converter. In this paper a comparative evaluation of different topologies of AC–DC converter is completed for Total Harmonic Distortion and enriched power factor. The model is simulated in MATLAB and their results are shown.
电力电子学是电气工程研究的一个广阔领域,它包括控制和开关电机的不同开关装置,以及驱动它们的输出、速度和扭矩等。它在我们的日常生活中有许多应用,如电机驱动和计算机电源。这些器件所产生的“电流”是扭曲的,因此有必要使用功率因数校正转换器。本文对不同拓扑结构的交直流变换器的总谐波失真和富集功率因数进行了比较评价。在MATLAB中对该模型进行了仿真,并给出了仿真结果。
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引用次数: 7
Fuzzy Modeling between Cerebral Blood Flow and Physiological Parameters of the Human Brain 脑血流与人脑生理参数的模糊建模
Kavita Goyal, M. Uddin, V. Jindal
The major concepts developed in the 19th and 20th centuries about the effectors of cerebral blood flow (CBF) are considered in this research paper. These effectors (arterial physiological parameters) are: arterial partial pressure of oxygen (PaO2), arterial partial pressure of carbon dioxide (PaCO2) and mean arterial blood pressure (MABP). This research is focused to evaluate the most dominant factor which is accountable for the changes in the cerebral blood flow out of these three arterial physiological parameters by using the fuzzy logic modeling. The fuzzy membership functions and their linguistic classes with their optimal range of these physiological parameters are defined with the help of literature. The evaluation of dominant factor of CBF will contribute significantly in clinical use for both health and disease.
本文对19世纪和20世纪关于脑血流效应的主要概念进行了研究。这些效应物(动脉生理参数)是:动脉氧分压(PaO2)、动脉二氧化碳分压(PaCO2)和平均动脉血压(MABP)。本研究的重点是利用模糊逻辑模型来评价这三个动脉生理参数中影响脑血流量变化的最主要因素。通过文献资料,确定了生理参数的模糊隶属函数及其最优范围的语言类。脑血流优势因子的评估对临床健康和疾病的应用都有重要意义。
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引用次数: 1
Wavelet based Noise Reduction Techniques for Real Time Speech Enhancement 基于小波的实时语音增强降噪技术
Bhat Raghavendra Ravi, S. Deepu, M. Ramesh Kini, D. S. Sumam
Fixed noise suppression techniques are generally used for speech enhancement in different low power real time systems. In this paper, we propose a modified adaptive system for classification of speech signals and noise reduction based on multi-band techniques. It involves initial identification of incoming speech segments as clean speech, speech in noise or pure noise. For the noisy speech segments, background noise classification is carried out using different wavelet-based feature sets. Noise Reduction system consists of removal of adaptive stationary noise and non-stationary noise based on classified noise type. Simulation results show that the proposed system provides optimal noise reduction and better speech quality with reduced computational complexity in adverse noisy environments.
固定噪声抑制技术通常用于各种低功耗实时系统的语音增强。本文提出了一种基于多波段技术的语音信号分类和降噪改进自适应系统。它涉及对传入语音片段的初始识别,包括干净语音、噪声语音或纯噪声语音。对于有噪声的语音片段,使用不同的基于小波的特征集进行背景噪声分类。降噪系统包括根据噪声类型对自适应平稳噪声和非平稳噪声进行降噪。仿真结果表明,在不利的噪声环境下,该系统具有较好的降噪效果和较好的语音质量,同时降低了计算复杂度。
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引用次数: 2
Joint Source Channel Coding with Bandwidth Compression 带宽压缩联合源信道编码
Surajit Deka, K. K. Sarma
In this paper, we have considered the broadcasting of a memoryless bivariate Gaussian source over a Gaussian broadcast channel with respect to bandwidth compression. We have analysed the performance of a hybrid digital-analog (HDA) coding system in combination with joint source channel coding (JSCC) to measure the distortion regions. The transmission advantages due to the combination of both the analog and digital techniques, a class of HDA schemes that yields better performance in distortion is discussed. The performance of source and channel coding for the possible better outcome of the system is measured by employing Wyner-Ziv and Costa coding. In our model, we have considered the upper layer to be a combination of a hybrid layer in the sense of both the analog and digital processing is done. This is executed in presence of quantization error and performance of the system is measured with two conditions: 1) HDA scheme with quantization scaling factor α = 0, i.e. the input of the channel have only the analog information which is considered as the scaled quantization error βS 2) The analog information from the first layer S is suppressed by setting error scaling factor β = 0 and 3) Inclusion of recursive mode with JSCC in each of the three layers for the possible better outcome is considered here.
在本文中,我们考虑了一个无记忆的二元高斯源在高斯广播信道上的带宽压缩广播。我们分析了混合数模(HDA)编码系统与联合源信道编码(JSCC)相结合的性能,以测量失真区域。讨论了模拟和数字技术相结合的传输优势,以及一类失真性能更好的HDA方案。通过采用Wyner-Ziv和Costa编码来测量源和信道编码的性能,以获得可能更好的系统结果。在我们的模型中,我们认为上层是混合层的组合,因为模拟和数字处理都完成了。这是在存在量化误差的情况下执行的,并且在两个条件下测量系统的性能:1)量化比例因子α = 0的HDA方案,即信道输入只有模拟信息,将其视为缩放后的量化误差βS; 2)通过设置误差比例因子β = 0和3)考虑在三层中每一层都包含JSCC递归模式,以获得更好的结果。
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引用次数: 1
A Novice Encryption Technique using Substitution Clock and Time in It (SCT) 一种基于替代时钟和时间的新手加密技术
Kshitij Kala, Akhilesh Dwivedi, Janmejay Pant, Senam Pandey, Vertika Kandpal, R. P. Pant
In this paper, we have developed an algorithm that proposes advance and novice security mechanism that can defend any kind of attacks and is advantageous over the other existing algorithms that are currently being used in security areas like email and web-based security applications. This algorithm is based on the concept of time in analog clock. The most powerful feature of this algorithm is 10506 (permutation of substitution clock). We implemented this algorithm in python. And after verification and validation we found out that it is impossible to crack by any kind of tool in existence. We are looking forward to use this algorithm in various applications.
在本文中,我们开发了一种算法,该算法提出了一种高级和初级的安全机制,可以防御任何类型的攻击,并且优于目前在电子邮件和基于web的安全应用等安全领域使用的其他现有算法。该算法基于模拟时钟中的时间概念。该算法最强大的特性是10506(置换时钟)。我们用python实现了这个算法。经过验证和验证,我们发现任何现有的工具都无法破解。我们期待着在各种应用中使用该算法。
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引用次数: 2
Error probability analysis of FSO Communication System using Differential Chaos Shift Keying 差分混沌移位键控FSO通信系统误差概率分析
Ghanishtha Narang, Mona Aggarwal, H. Kaushal, Swaran Ahuja
Free Space Optical (FSO) communication system is known for its high capacity, very large bandwidth, high directivity, non-licensed spectrum and many more advantages. The main issues in any communication system are security and privacy. Although FSO communication is more secure than Radio Frequency (RF) communication system, however, FSO communication still suffer from security threats due to tapping or beam spillage issues. The use of chaotic signals in communication leads to a revolution in the history of secure transmission of information. Therefore, in this manuscript, we aim to improve the security of FSO communication system taking Gamma-Gamma turbulence model using Differential Chaos Shift Keying (DCSK). The performance of the proposed chaotic FSO system is studied taking into consideration different turbulence conditions and analytical expression of probability of error has been derived.
自由空间光通信系统以其高容量、大带宽、高指向性、免许可频谱等优点而著称。任何通信系统的主要问题都是安全和隐私。尽管FSO通信比射频通信系统更安全,但由于窃听或波束溢出问题,FSO通信仍然存在安全威胁。在通信中使用混沌信号导致了信息安全传输历史上的一次革命。因此,在本文中,我们的目标是使用差分混沌移位键控(DCSK)来提高采用Gamma-Gamma湍流模型的FSO通信系统的安全性。研究了不同湍流条件下混沌FSO系统的性能,推导了误差概率的解析表达式。
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引用次数: 4
Semantic Background Estimation in Video Sequences 视频序列中的语义背景估计
A. Savakis, Aadeesh Milind Shringarpure
We present a method that estimates the scene background in videos by utilizing semantic segmentation to extract foreground objects, such as people or cars, and stitching background regions to reconstruct the background. Inspired by recent developments in deep learning, we utilize semantic segmentation based on Conditional Random Field as Recurrent Neural Networks (CRF as RNN) to detect the regions of important objects in each frame and generate a foreground-background map. We use these segmentation maps to extract the background regions from each frame and then stitch them over consecutive frames to obtain the full background for the video sequence. Our foreground/background estimation approach has potential applications in change detection, video surveillance, video compression and video privacy. We illustrate the effectiveness of our method on example videos from the Change Detection (CDNET) dataset.
本文提出了一种利用语义分割提取前景对象(如人或车),并拼接背景区域重建背景的视频场景背景估计方法。受深度学习最新发展的启发,我们利用基于条件随机场的语义分割作为递归神经网络(CRF as RNN)来检测每帧中重要物体的区域,并生成前景-背景图。我们使用这些分割映射从每帧中提取背景区域,然后将它们拼接到连续的帧中,以获得视频序列的完整背景。我们的前景/背景估计方法在变化检测、视频监控、视频压缩和视频隐私方面具有潜在的应用前景。我们对来自变化检测(CDNET)数据集的示例视频演示了我们的方法的有效性。
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引用次数: 5
期刊
2018 5th International Conference on Signal Processing and Integrated Networks (SPIN)
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